Apparatus for making barrels, pipes, or cylinders.



INU. MLZ Pafend 1an. 2, i900. J. H. J. BARTELS.

APPARATUS F08 MAKINGBARRELS, PIPES, 0R CYLINDERS.

(Application Bled May 13, 1899.) (No Nassim.) 2 Shams-Sheet l.

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J H J. BABTELS.

APPARATUS FOR MAKING BABRELS, PIPES, 0B CYLINDERS.

A plcation filed May 13, 1899.) oooooo el 2 Sheets-Sheet 2.

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JOHANN II. J. BARTELS, OF LIVERPOOL, ENGLAND.

APPARATUS FOR ll/lAKihiG BARHELS, EURES, OR CYLINDERS.

SPECIFICATION forming part of Letters 'fatent No. 640,524, dated January2, 1900.

Application led liiuyl, 1899. Serial No.7l6,650. (No model.)

To (all whom, 'may concern.-

Be it known that l, JOHANN HEINRICH JU LIUS BARTELS, a subject of theEmperor of Germany, residing in Liverpool, in the county of Lancaster,England, have invented certain new and useful Improvements in Apparatusfor Making Barrels, Pipes, or Cylinders, of which the following is aspecification.

This invention relates to apparatus for the production of barrels,pipes, or cylinders from layers of veneer or the like; and, as generallystated, the invention comprises, in combina tion, a fixed outer cylinderor former, an inner eXpansible segmental die cylindrical on the exteriorand oppositely inclined on the interior from an apex at or about themiddle of the die toward the ends thereof, and oppo sitely-disposedcones coacting with the inner inclined portions of said die andslidingly coupled to the respective segments thereof, whereby thelongitudinal movement of said cones will expand or contract the die in amanner to compress or release the substance between the die and theouter cylinder.

Theinvention also comprises novel features of construction andcombinations of parts, which will be hereinafter particularly describedand claimed.

In the drawings, Figure l is an end view of a mantle of a barrel such asmy apparatus is designed to produce. Fig. 2 is a sectional elevation ofsaid apparatus; Fig. 3, a sectional plan, and Iiig. a a front view oftwo segments at their point of junction.

Referring to the iigures, A is a cylindrical die or core divided for thepurpose of making it expansible into three or more separate segments,which are shaped on the outside to give a bilge to the composite sheetof veneers or may be made straight, as in the arrangement shown in thedrawings. These segments at their adjacent edges are provided with teethor projections a, with depressions a between, the projections on therespective segments engaging in or entering the depressions in theadjacent segments, as clearly shown in Fig. e, and thus when these segments expand they do not sepa-rate, as the Space which would otherwisebe formed between them is in great measure filled up by the projectionsentering the opposite depressions, A very thin plate A may be placedover the surface of the segmentsat their intermeshing edges, if desired,thus covering them entirely, the teeth forming sufficient supporttherefor, as shown in Fig. 3 only. The segments A are mounted on theplate or frame B in such a manner that each segment shallhave a freeradial movement. They are wedge-shaped at C on their inside faces insuch a manner as to slope from an apex in the middle toward their ends,and between these wedge-shaped pieces I place cones D, which arerespectively connected to the cylindrical dies aforesaid by the platesE, which are secured to the cones and dovetailed to the segments A, thuspreventing the cones D separating from the segments A,while permitting alongitudinal movement of the cones D independent of the segments.Through the center of these cones passes a rotary screw F, threaded atone end with a left-hand thread and at the other with a right-handthread, so that the rotation of the screw in one direction will causethe cones to approach each other and at the same time force therespective segments of the cylinder A outward, or by rotating in theopposite direction the cones will move away from each other and draw thesegments A of the cylinder inward, owing to their being coupled to thecylinder by the dovetails G. Ooncentrically around the apparatus I placethe cylinder or die H, of the exact size and shape inside that isrequired for the barrel, cylinder, orother article. This cylinder or dieis made in two parts hinged together at I and fastened around withremovable strong metallic bands J.

The mode of action is as follows: The layers of veneer K are placedbetween the outside of the expansible dies A and the inside of thecylinder Il, the veneers being bent by hand and the respective layersarranged to break joint. These layers are placed concentrically aroundeach other, with the grain of each veneer preferably transverse to thelongitudinal axis of the mantle. Each veneer is coated with glue orother waterproof cement, and the cylinder II and dies A may be heated toassist in the process of pressing the layers into one solid mass. Forthis purpose the dies A may be made hollow and heated by steam, aflexible-pipe connection being provided so as to allow the dies freeradial move- IOO ment. The screw F is then turned by hand or otherpower, the result of which is to draw the cones Gcloser together, andthus expand the dies A and compress the composite sheet K, causing it toassume the shape required. The pressure, as will be seen, is directedfrom the inside of the composite sheet, the outside cylinderHbeingstationary. The sheet can be pressed either hot or cold by hand or bypower. To release the composite sheet from between the cylinder H anddies A, the pressure of the latter is relaxed by turning the screw F inthe opposite direction, the metallic bands .I are lifted off, and thecylinder I-I opened. When this is eifected, the cylindrical. barrel isremoved.

In addition to the three layers of veneer there may be a stiffener inthe bilge, which should be as thick as possible and should be locatedexactly in the middle. There may be also a small projection on theoutside of the cylindrical die A, near both ends, arranged to form asquare depression or rabbet in the composite sheet. Into this depressionor rabbet the edges of the barrel-heads can be pressed and be held inthis depression.

I- declare that what I claim isl. In an apparatus for the production ofbarrels, pipes, or cylinders from layers of ve.- neer, or the like, thecombination with a fixed outer cylinder, of an inner expansiblesegmental die cylindrical on the exterior and oppositely inclined on theinterior from an apex at or about the middle of the die toward the endsthereof, and oppositely-disposed cones coinciding with the inclinedportions of said die and slidingly coupled to the respective segmentsthereof, whereby the longitudinal movement of said cones will expand orcontract the die to compress or release the substance between the sameand the outer fixed cylinder, substantially as described.

2. In an apparatus for the production of barrels, pipes, or cylindersfrom layers of veneer, or the like, the combination with a fixed outercylinder, of an inner expansible segmental die cylindrical on theexterior and oppositely inclined on the interior from an apex at orabout the middle of the die toward the ends thereof, andoppositely-disposed cones coinciding with the inclined portions of saiddie and slidingly coupled to the respective segments thereof, wherebythe longitudinal movement of said cones will expand or contract the dieto compress or release the substance between the same and the outerfixed cylinder, together with means for simultaneously actuating saidcones, substantially as described.

3. In an apparatus for the production of barrels, pipes, or cylindersfrom layers of veneer, or the like, the combination with a xed outercylinder, of an inner expansible segmental die cylindrical on theexterior and oppositely inclined on the interior from an apex at orabout the middle of the die toward the ends thereof, andoppositely-disposed cones coinciding with the inclined Walls of said dieand having sliding dovetail connections with the respective segmentsthereof, and means whereby` the said cones are simultaneously moved inopposite directions to each other, substantially as described.

4. In an apparatus for the production of barrels, pipes, or cylindersfrom layers of veneer, or the like, the combination with a 'fixed outercylinder, of an inner expansible segmental die cylindrical on theexterior and oppositely inclined on the interior from an apex at orabout the middle of the die toward the ends thereof, the inclinedportions of the respective segments of the die being provided withlongitudinal dovetail grooves, oppositely-disposed cones coinciding withthe inclined walls of said die and provided with plates or extensionsfitted to the proximate grooves, and means for simultaneously movingsaid cones in opposite directions to each other, substantially asdescribed.

5. In an apparatus for the production of barrels, pipes, or cylindersfrom layers of veneer, or the like, the combination with a iixed outercylinder, lof an inner expansible segmental die cylindrical on theexterior and oppositely inclined on the interior from an apex at orabout the middle of the die toward the ends thereof, the adjacent edgesof the segments of the die being provided from the interior to theexterior thereof with interlocking projections and recesses,oppositely-disposed cones coacting with the inclined surfaces of therespective segments and slidingly coupled thereto, and means for movingsaid cones in opposite directions to each other, substantially asdescribed.

In witness whereof I have hereunto signed my name, this 29th day ofApril, 1899, in the presence of two subscribing witnesses.

J.H. J. BARTELS.

Witnesses:

G. C. DYMoND, W. H. BEEs'roN.

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